id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
slidex-v2-0019 | UFSCAOVHYRUZCYQUJQ | UFSCAOVHYRUZCYQUJQ | CONTACT HAS BEEN MADE | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
typex-v2-0074 | DQAMWLBSFQHCQTQRVHJQDDCIJHKYHOFLCGFUPQGNYHTVSBKLKVOKQWGXCSTKTGJTMVVYYDHJETKOL | DQAMWLBSFQHCQTQRVHJQDDCIJHKYHOFLCGFUPQGNYHTVSBKLKVOKQWGXCSTKTGJTMVVYYDHJETKOL | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0050 | UNZAIIYBREUNTKZQQXRUMNQKUQQXRUUSZAIIYBREUNTCZXZXULQEAQMWUHXJWNRYDIDE | UNZAIIYBREUNTKZQQXRUMNQKUQQXRUUSZAIIYBREUNTCZXZXULQEAQMWUHXJWNRYDIDE | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-578 | QET MTJIMQN IO GX PTCQE ECUT RTTH KMTCQFX TWCKKTMCQTP | QET MTJIMQN IO GX PTCQE ECUT RTTH KMTCQFX TWCKKTMCQTP | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "CRYPTOKEY"
} | beginner | en | 45 | 53 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0354 | GPRTAFRILOCE | GPRTAFRILOCE | HOLD THE LINE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
fialka-126 | QJBRTCEJWIXILHOI | QJBRTCEJWIXILHOI | PROCEED AS PLANNED | fialka | fialka | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
nomenclator-v2-0143 | 03 15 04 05 04 13 05 19 19 01 07 05 06 15 12 12 15 23 19 | 03 15 04 05 04 13 05 19 19 01 07 05 06 15 12 12 15 23 19 | CODED MESSAGE FOLLOWS | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 38 | 56 | cipher_museum | 2.0 | public | null | null |
cda-0019271 | 11 5 18 3 11 8 15 6 6 19 16 18 9 14 3 9 16 12 5 19 1 25 19 20 8 5 19 25 19 20 5 13 13 21 19 20 2 5 19 5 3 21 18 5 5 22 5 14 9 6 5 14 5 13 25 11 14 15 23 19 1 12 7 15 18 9 20 8 13 | 11 5 18 3 11 8 15 6 6 19 16 18 9 14 3 9 16 12 5 19 1 25 19 20 8 5 19 25 19 20 5 13 13 21 19 20 2 5 19 5 3 21 18 5 5 22 5 14 9 6 5 14 5 13 25 11 14 15 23 19 1 12 7 15 18 9 20 8 13 | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 69 | 69 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0020154 | SUBS TITU TION CIXH ERSZ APEA CHLE TXER TOXD IFFE RENT LETT EXTH EVIG ENER ECIP XERU SXSA REXE ATIZ GKEY WORD KERC KHZF FSPR INCI XLES AYST HEXY STEM MUST BESE CZRE EVXN IFEN EMYK NOWS AZGO RITH MDIZ FIEA NDHE LLMA NINT RODU CEDP ZBLI CKEY CRYP TOGR APHY INNI NETE ENZE VENZ YSIX D | SUBS TITU TION CIXH ERSZ APEA CHLE TXER TOXD IFFE RENT LETT EXTH EVIG ENER ECIP XERU SXSA REXE ATIZ GKEY WORD KERC KHZF FSPR INCI XLES AYST HEXY STEM MUST BESE CZRE EVXN IFEN EMYK NOWS AZGO RITH MDIZ FIEA NDHE LLMA NINT RODU CEDP ZBLI CKEY CRYP TOGR APHY INNI NETE ENZE VENZ YSIX D | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE VIGENERE CIPHER USES A REPEATING KEYWORD KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | commercial_code | commercial_code | null | {} | hard | en | 225 | 225 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
columnar-transposition-vi-0025 | BHAMFCMTEHDNVTSIHHKEGLODLALFTTIBNLYENEFNIATERTAOEEWUDNILNOATBICTREAESLTUOO | BHAMFCMTEHDNVTSIHHKEGLODLALFTTIBNLYENEFNIATERTAOEEWUDNILNOATBICTREAESLTUOO | BE WATCHFUL STAND FIRM IN THE FAITH ACT LIKE MEN BE STRONG LET ALL THAT YOU DO BE DONE IN LOVE | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
vigenere-de-086 | FIHPWKPQROXEWZCPGYVZXJLKKOTZMJVVXJLKGQCTECHIAZGY | FIHPWKPQROXEWZCPGYVZXJLKKOTZMJVVXJLKGQCTECHIAZGY | DAS IST NICHT NUR NICHT RICHTIG ES IST NICHT EINMAL FALSCH | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | de | 48 | 48 | cipher_museum | 0.2 | public | null | null |
kryha-050 | UJXCOCYGRJOWXCGKSYPCXUWHDAMXGXHHXVOWHAYWGTUVOIVVSHUMZNJ | UJXCOCYGRJOWXCGKSYPCXUWHDAMXGXHHXVOWHAYWGTUVOIVVSHUMZNJ | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | kryha | kryha | machine | {
"type": "keyword",
"value": "KRYHA"
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
two-square-v2-0376 | QBUSTBPDVEAGEZ | QBUSTBPDVEAGEZ | TRUST BUT VERIFY | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
hill-v3-0375 | WHHKWQDMKCRCCYLUEBAICZANJPDNXMKFKPEBEGTCKRKCGXUOURDMWGFJMRUOZPKCLZXCAQDOKMWWHY | WHHKWQDMKCRCCYLUEBAICZANJPDNXMKFKPEBEGTCKRKCGXUOURDMWGFJMRUOZPKCLZXCAQDOKMWWHY | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-149 | DSEBHHORCCPZSXGJ | DSEBHHORCCPZSXGJ | LOCK DOWN ALL GATES | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
two-square-v2-0103 | HLOLRAEMRDLUTMSOHBUKOLALPFOMORNICAQNONSSDELLHBCOLSVSULHQQMNGUGEAPPUKZBDCIPHERDNPMW | HLOLRAEMRDLUTMSOHBUKOLALPFOMORNICAQNONSSDELLHBCOLSVSULHQQMNGUGEAPPUKZBDCIPHERDNPMW | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0138 | OOOISLDDERHNLSDIS | OOOISLDDERHNLSDIS | OLD IRONSIDES HOLDS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0020722 | ROUTE CIPHE RSREZ DAGRZ DINAX RESCX IBEDG EOMET RICPZ TTERX THEVI GENER ECIPH ERUSE SAREP EATIN GKEYW ORDAX RANSX ARENZ TOOLX HOULZ SHOWI TSREZ SONIX GDIGZ APHAN DTRIG RAPHF REQUE NCIEZ EXPOS ESIMP LECIZ HERSZ | ROUTE CIPHE RSREZ DAGRZ DINAX RESCX IBEDG EOMET RICPZ TTERX THEVI GENER ECIPH ERUSE SAREP EATIN GKEYW ORDAX RANSX ARENZ TOOLX HOULZ SHOWI TSREZ SONIX GDIGZ APHAN DTRIG RAPHF REQUE NCIEZ EXPOS ESIMP LECIZ HERSZ | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE VIGENERE CIPHER USES A REPEATING KEYWORD A TRANSPARENT TOOL SHOULD SHOW ITS REASONING DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | commercial_code | commercial_code | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0016523 | 6307 2593 1655 6333 05699 02905 06367 02539 01642 4171 2867 06648 5967 01023 02895 05098 2550 1657 05699 0332 01309 6987 00410 4438 1019 1649 05998 06283 02551 01652 00323 3792 5068 2519 0362 0709 1606 06330 0701 7949 4715 4493 1571 5074 4773 06008 02891 06299 2897 04756 04488 1587 00324 01035 2595 3833 1584 06371 6343... | 6307 2593 1655 6333 05699 02905 06367 02539 01642 4171 2867 06648 5967 01023 02895 05098 2550 1657 05699 0332 01309 6987 00410 4438 1019 1649 05998 06283 02551 01652 00323 3792 5068 2519 0362 0709 1606 06330 0701 7949 4715 4493 1571 5074 4773 06008 02891 06299 2897 04756 04488 1587 00324 01035 2595 3833 1584 06371 6343... | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | zimmermann | zimmermann | null | {} | hard | en | 204 | 204 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0019264 | ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w40⟩ ⟨w08⟩ ⟨a07⟩ ⟨w08⟩ ⟨a01⟩ ⟨w40⟩ ⟨w22⟩ ⟨w32⟩ ⟨w22⟩ ⟨w14⟩ ⟨w08⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨a31⟩ ⟨w20⟩ ⟨w08⟩ ⟨a01⟩ ⟨w34⟩ ⟨w20⟩ ⟨w08⟩ ⟨w38⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ | ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w40⟩ ⟨w08⟩ ⟨a07⟩ ⟨w08⟩ ⟨a01⟩ ⟨w40⟩ ⟨w22⟩ ⟨w32⟩ ⟨w22⟩ ⟨w14⟩ ⟨w08⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨a31⟩ ⟨w20⟩ ⟨w08⟩ ⟨a01⟩ ⟨w34⟩ ⟨w20⟩ ⟨w08⟩ ⟨w38⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | babington | babington | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
trifid-v2-0595 | TULPEEIMXJJDOTPOHLUTTSZFEDUKGBFHGICDSRFERRXSSTVLPJDEGKGTPG+PQ+NBLBBRWCRVRZUZXGBS | TULPEEIMXJJDOTPOHLUTTSZFEDUKGBFHGICDSRFERRXSSTVLPJDEGKGTPG+PQ+NBLBBRWCRVRZUZXGBS | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0002920 | IHXXRZTFHQEPPOZEGSGKZBXIJWWFQKSRLXORFPYTPPWOMCTTRJIQLXZ | IHXXRZTFHQEPPOZEGSGKZBXIJWWFQKSRLXORFPYTPPWOMCTTRJIQLXZ | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | autokey | autokey | null | {
"primer": "PATTERN"
} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
lorenz-v3-0371 | THESFNATEDECREES | THESFNATEDECREES | THE SENATE DECREES | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0016860 | 87 2 48 43 1 3 11 94 59 61 68 33 64 68 88 23 82 39 63 17 1 67 22 60 67 92 25 17 34 33 23 63 76 11 59 68 66 26 99 11 91 3 1 81 50 63 26 11 59 60 59 76 15 35 66 63 17 22 34 43 34 23 82 58 34 2 81 24 22 96 48 68 60 22 34 50 78 66 60 17 72 14 91 11 14 67 11 91 93 68 32 68 66 26 15 52 59 46 61 93 22 27 15 62 94 48 39 39 40 ... | 87 2 48 43 1 3 11 94 59 61 68 33 64 68 88 23 82 39 63 17 1 67 22 60 67 92 25 17 34 33 23 63 76 11 59 68 66 26 99 11 91 3 1 81 50 63 26 11 59 60 59 76 15 35 66 63 17 22 34 43 34 23 82 58 34 2 81 24 22 96 48 68 60 22 34 50 78 66 60 17 72 14 91 11 14 67 11 91 93 68 32 68 66 26 15 52 59 46 61 93 22 27 15 62 94 48 39 39 40 ... | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | homophonic | homophonic | null | {} | hard | en | 213 | 213 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
cda-0014727 | THAN-ZIE / LIN / DZEH / MA-E / GAH / TKIN / DZEH / BE / NA-AS-TSO-SI / WOL-LA-CHEE / TSAH / THAN-ZIE / DZEH / DIBEH / THAN-ZIE / NO-DA-IH / DIBEH / DZEH / DIBEH / THAN-ZIE / LIN / DZEH / TKIN / TSAH / BE / DZEH / AL-... | THAN-ZIE / LIN / DZEH / MA-E / GAH / TKIN / DZEH / BE / NA-AS-TSO-SI / WOL-LA-CHEE / TSAH / THAN-ZIE / DZEH / DIBEH / THAN-ZIE / NO-DA-IH / DIBEH / DZEH / DIBEH / THAN-ZIE / LIN / DZEH / TKIN / TSAH / BE / DZEH / AL-... | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | navajo_code | navajo_code | null | {} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
fialka-v3-0198 | BLIZGUUUZQPGPDOZOCZKTJMWJCIFYFIDUDEJWDUQJKSHFYHEXJATTAYIAKQFEOYUKWTQXMEYZYADWHFZUPMWKOFLSPWPXYZCYFXTRKWTYBUOZXLBPQMCMBYMXOVXHMNFVSIBPKNRAPYMKOMJQKWCLTDTPSFPEVQYP | BLIZGUUUZQPGPDOZOCZKTJMWJCIFYFIDUDEJWDUQJKSHFYHEXJATTAYIAKQFEOYUKWTQXMEYZYADWHFZUPMWKOFLSPWPXYZCYFXTRKWTYBUOZXLBPQMCMBYMXOVXHMNFVSIBPKNRAPYMKOMJQKWCLTDTPSFPEVQYP | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
cda-0009086 | NSYOEFAOEENALOINLECELAWRSXCOAECHRKNLMPMDAROEPXTNIHUNIFCLITIROYSTLUTXIARFIXIRNOSCTSLNEATDPENPURERSAOXNA | NSYOEFAOEENALOINLECELAWRSXCOAECHRKNLMPMDAROEPXTNIHUNIFCLITIROYSTLUTXIARFIXIRNOSCTSLNEATDPENPURERSAOXNA | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER SLOWLY | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "SIGNAL"
} | hard | en | 102 | 102 | synthetic_educational | null | null | [] | |
kl7-233 | GZVOHWZUDCUUJEOFDNKBDQSGWODZDBRJHWNTKKIQIPRNBCQSPGRFQTXJMCST | GZVOHWZUDCUUJEOFDNKBDQSGWODZDBRJHWNTKKIQIPRNBCQSPGRFQTXJMCST | LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER | kl7 | kl7 | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
trifid-v3-0080 | OJJUXWNROCHKBYBRCGDZHPOHAIGPHVVNBLPADA+VJFSCCVPXE+ESXADBHLTHOCJUUWRUKPDOLETGGNKYPY | OJJUXWNROCHKBYBRCGDZHPOHAIGPHVVNBLPADA+VJFSCCVPXE+ESXADBHLTHOCJUUWRUKPDOLETGGNKYPY | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0059 | 35 22 44 41 57 25 53 87 66 52 43 14 32 51 73 41 88 62 22 16 71 43 88 75 57 30 69 49 22 44 41 16 25 53 15 72 79 43 14 65 51 73 41 88 25 57 30 34 66 51 52 79 82 32 24 30 69 75 16 51 34 72 30 14 43 22 87 66 88 53 69 44 | 35 22 44 41 57 25 53 87 66 52 43 14 32 51 73 41 88 62 22 16 71 43 88 75 57 30 69 49 22 44 41 16 25 53 15 72 79 43 14 65 51 73 41 88 25 57 30 34 66 51 52 79 82 32 24 30 69 75 16 51 34 72 30 14 43 22 87 66 88 53 69 44 | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 144 | 215 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0794 | TLREMHEBAFSARSSOAEBLET | TLREMHEBAFSARSSOAEBLET | FLEET ASSEMBLES AT HARBOR | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0196 | U3 M4 D5 E6 H1 C0 Y8 G7 F0 G0 W1 Z3 D4 I7 P0 M7 B4 O5 Z3 P3 E8 N8 F0 R3 P5 L2 B7 K7 N2 G4 I1 J0 E0 L8 K8 P7 I7 N8 P8 E0 O0 F6 K7 E8 S7 M8 B4 H4 Z4 O1 E6 P0 Q8 P7 K1 S8 G3 N9 G4 O1 N3 C6 M9 L7 M7 G3 R3 P0 A2 N5 O0 Q8 O1 G5 N2 G4 O2 E0 D6 G5 I1 M2 E6 P2 K7 E9 O5 C6 G0 G7 N5 M2 R3 P0 G0 T4 O4 E6 I2 G0 I3 Q4 O7 G4 L1 F0 K8... | U3 M4 D5 E6 H1 C0 Y8 G7 F0 G0 W1 Z3 D4 I7 P0 M7 B4 O5 Z3 P3 E8 N8 F0 R3 P5 L2 B7 K7 N2 G4 I1 J0 E0 L8 K8 P7 I7 N8 P8 E0 O0 F6 K7 E8 S7 M8 B4 H4 Z4 O1 E6 P0 Q8 P7 K1 S8 G3 N9 G4 O1 N3 C6 M9 L7 M7 G3 R3 P0 A2 N5 O0 Q8 O1 G5 N2 G4 O2 E0 D6 G5 I1 M2 E6 P2 K7 E9 O5 C6 G0 G7 N5 M2 R3 P0 G0 T4 O4 E6 I2 G0 I3 Q4 O7 G4 L1 F0 K8... | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 334 | 500 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0231 | ODURTMRFLUFFNQIGNKBQOX | ODURTMRFLUFFNQIGNKBQOX | THE TELEGRAPH TRANSMITS | four_square | four_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-117 | K3HVVRRPLWB7T45UKQGPLWASGLHFECGL4JXWGO6DECRI5NVVOIHKM4EJLCKAG45UDRRN6JICFM5DD7PG6DHSGIMRACCCLPJTTMPVASBM2JXZMF4JXWC3NHQDGNBWSWKKIUDV2OPSACFMEHWCH4EMIVC23WA | K3HVVRRPLWB7T45UKQGPLWASGLHFECGL4JXWGO6DECRI5NVVOIHKM4EJLCKAG45UDRRN6JICFM5DD7PG6DHSGIMRACCCLPJTTMPVASBM2JXZMF4JXWC3NHQDGNBWSWKKIUDV2OPSACFMEHWCH4EMIVC23WA | IT IS RATHER FOR US TO BE HERE DEDICATED TO THE GREAT TASK REMAINING BEFORE US THAT FROM THESE HONORED DEAD WE TAKE INCREASED DEVOTION TO THAT CAUSE FOR WHICH THEY GAVE THE LAST FULL MEASURE | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 155 | 155 | cipher_museum | 0.2 | public | null | null |
copiale-v2-0059 | M5 R8 A6 M9 B8 O6 N2 K3 A1 B3 L1 Y6 B7 D0 A9 T4 R8 C4 K8 B8 K0 C0 R1 N3 B5 M2 Q8 I4 M8 N3 C0 A3 Q1 O6 K3 P9 R5 C0 H2 N7 M2 G6 M9 S0 O6 A5 D0 B2 A1 V4 B3 R5 C2 X0 Q6 O0 B2 T7 A4 V4 T1 A1 D2 Y6 T4 R8 M6 P9 M8 Q1 T1 N3 | M5 R8 A6 M9 B8 O6 N2 K3 A1 B3 L1 Y6 B7 D0 A9 T4 R8 C4 K8 B8 K0 C0 R1 N3 B5 M2 Q8 I4 M8 N3 C0 A3 Q1 O6 K3 P9 R5 C0 H2 N7 M2 G6 M9 S0 O6 A5 D0 B2 A1 V4 B3 R5 C2 X0 Q6 O0 B2 T7 A4 V4 T1 A1 D2 Y6 T4 R8 M6 P9 M8 Q1 T1 N3 | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 144 | 215 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0613 | QTDUGIHIJDLRXJWSAFTWOGTFMKXUJUTXDBWZNKJVAXIDPOFAQISXTNWNIOKQRHSPNEYGQUHZOOORNLFFDMGNNIAAYJAVVGSIYBTXKALJDPSERBOORTMJRAXDUCHNAUXIOYKDGMRVXTBAZUBVUSPHOOYUQYVJAFZCMTROPJAHE | QTDUGIHIJDLRXJWSAFTWOGTFMKXUJUTXDBWZNKJVAXIDPOFAQISXTNWNIOKQRHSPNEYGQUHZOOORNLFFDMGNNIAAYJAVVGSIYBTXKALJDPSERBOORTMJRAXDUCHNAUXIOYKDGMRVXTBAZUBVUSPHOOYUQYVJAFZCMTROPJAHE | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0091 | YNRUNDSRGNNFGVOSLFNNUTTNLBETNUGSFSTNLZRSLBTSHTACLOQGTKKALHFNELOTNWNCOTTRMNDGGR | YNRUNDSRGNNFGVOSLFNNUTTNLBETNUGSFSTNLZRSLBTSHTACLOQGTKKALHFNELOTNWNCOTTRMNDGGR | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
hill-265 | KITIXGQGACXJPSYR | KITIXGQGACXJPSYR | SILENCE IS GOLDEN | hill | hill | polygraphic | {
"a": 7,
"b": 5,
"c": 2,
"d": 3
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v3-0267 | MLSMLPUQYUYDPUSLWJVNBIYYGKTNLQQBTFYDQPTTTLWLYQYTLPYYNAEQPTTEYGFNEPBTEVYUYNEQAKLPAPBYHQBTBG | MLSMLPUQYUYDPUSLWJVNBIYYGKTNLQQBTFYDQPTTTLWLYQYTLPYYNAEQPTTEYGFNEPBTEVYUYNEQAKLPAPBYHQBTBG | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 90 | 90 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0390 | THECPMPASSPOINTSTRUE | THECPMPASSPOINTSTRUE | THE COMPASS POINTS TRUE | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
hill-175 | TKHUYSOMUHHVCUEOUUQFIRJZTKHUCGLADGCUDEUHEOHUNYEIUUWEHVNCQTHV | TKHUYSOMUHHVCUEOUUQFIRJZTKHUCGLADGCUDEUHEOHUNYEIUUWEHVNCQTHV | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | hill | hill | polygraphic | {
"a": 2,
"b": 3,
"c": 1,
"d": 4
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v3-0090 | FALFJZKAKDYNPRRDRLPZVKOLAHTVQZWTAAWBFAVUHSZMZHPVBWBFGQEWLWFRJGCBRVKAHNRBMTGVXH | FALFJZKAKDYNPRRDRLPZVKOLAHTVQZWTAAWBFAVUHSZMZHPVBWBFGQEWLWFRJGCBRVKAHNRBMTGVXH | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
kryha-065 | ANNLWUYDVKVDPBJ | ANNLWUYDVKVDPBJ | THE COAST IS CLEAR | kryha | kryha | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
straddling-checkerboard-v2-0368 | 42522285021832976325227025220218325128286547416425222912722425292245288222157468624022226701347202232522282212122425292220223821224252234828287414220325220223450224252976357228252228221212242529228642522701425352308242542257236223323502583612922312722 | 42522285021832976325227025220218325128286547416425222912722425292245288222157468624022226701347202232522282212122425292220223821224252234828287414220325220223450224252976357228252228221212242529228642522701425352308242542257236223323502583612922312722 | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME TO LIE DOWN IN GREEN PASTURES HE LEADETH ME BESIDE THE STILL WATERS HE RESTORETH MY SOUL HE LEADETH ME IN THE PATHS OF RIGHTEOUSNESS FOR HIS NAME SAKE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 251 | 251 | cipher_museum | 2.0 | public | null | null |
cda-0002134 | PITR RREE FNSE MEEF KLHN CDSU LAEO DMGN EESM SACF RSEV ERNU BFUD EFIC SIYY UEVN OOTE INUC LSCN XHRW EECS SSPP KGUS ECRL IATS CLNH RLTT TUNM SIEO CEEU EFII FITA YIRB EHEI OKDA EUSC | PITR RREE FNSE MEEF KLHN CDSU LAEO DMGN EESM SACF RSEV ERNU BFUD EFIC SIYY UEVN OOTE INUC LSCN XHRW EECS SSPP KGUS ECRL IATS CLNH RLTT TUNM SIEO CEEU EFII FITA YIRB EHEI OKDA EUSC | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE INDEX OF COINCIDENCE IS A USEFUL CLUE | stager_route | stager_route | null | {
"cols": 6
} | hard | en | 144 | 144 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
cda-0015652 | XQGM DANW TELP DOUZ WNOQ DUNQ WILK ZLGG GPEE JQUJ JGAO UFXL OCFH HMAE ACOC GRBR PGKO JRTO UXMP POBT JWG | XQGM DANW TELP DOUZ WNOQ DUNQ WILK ZLGG GPEE JQUJ JGAO UFXL OCFH HMAE ACOC GRBR PGKO JRTO UXMP POBT JWG | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | one_time_pad | one_time_pad | null | {} | hard | en | 83 | 83 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0012300 | 20 8 5 4 5 20 5 3 20 9 22 5 19 20 21 4 9 5 19 16 1 20 20 5 18 14 19 2 5 6 15 18 5 13 1 11 9 14 7 3 12 1 9 13 19 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 | 20 8 5 4 5 20 5 3 20 9 22 5 19 20 21 4 9 5 19 16 1 20 20 5 18 14 19 2 5 6 15 18 5 13 1 11 9 14 7 3 12 1 9 13 19 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
chaocipher-v3-0155 | PDBKLEELMTGTPWKFZDSCDOPRXWONGYGYCYDFBVQKFQWCHARORITWXAIWYWPNXGQGUHWBNDHG | PDBKLEELMTGTPWKFZDSCDOPRXWONGYGYCYDFBVQKFQWCHARORITWXAIWYWPNXGQGUHWBNDHG | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0012668 | TAKE SHEA VYEX ACTI NPUT NEED SDAI LYEI GHTE XTRA OFTE NFLA NKCA RRYO RDER INPU TNEE DSCO VERI NCUR DAIL YEXA CTNO TESC OVER ENEM YISS UEST AGEA MONG UNDE R | TAKE SHEA VYEX ACTI NPUT NEED SDAI LYEI GHTE XTRA OFTE NFLA NKCA RRYO RDER INPU TNEE DSCO VERI NCUR DAIL YEXA CTNO TESC OVER ENEM YISS UEST AGEA MONG UNDE R | THE INDEX OF COINCIDENCE IS A USEFUL CLUE HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
cda-0009112 | GUS YVPEOEL CERFSEISF XABJYRRUR SBE GVR NBZZHAVGL GVR OEPUNGRQGHER FVBHYN ZOXN ZVFHFN VOERRE | GUS YVPEOEL CERFSEISF XABJYRRUR SBE GVR NBZZHAVGL GVR OEPUNGRQGHER FVBHYN ZOXN ZVFHFN VOERRE | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | porta | porta | null | {
"key": "CIPHER"
} | hard | en | 80 | 80 | synthetic_educational | null | null | [] | |
joseon-yeokhak-137 | KCCRYRRFCMJBMYI | KCCRYRRFCMJBMYI | MEET AT THE OLD OAK | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "KOREA"
} | beginner | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v2-1437 | NBIAFJGU ATO PTEEMG JSN PJNIMO ATVM MGQMNMU QAM IBQY NMOBOQTGIM BO MGUMU BGPJNF QAM KNMOBUMGQ | NBIAFJGU ATO PTEEMG JSN PJNIMO ATVM MGQMNMU QAM IBQY NMOBOQTGIM BO MGUMU BGPJNF QAM KNMOBUMGQ | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "TRIUMPH"
} | beginner | en | 79 | 93 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0501 | VLMHAQQLKPOHFEHGHYQLQYHQQBKSHAQFQPYHAQXIPHQPKLTHLBQSQBHOHOFKYHUOHPPHAQLQPHQFQ | VLMHAQQLKPOHFEHGHYQLQYHQQBKSHAQFQPYHAQXIPHQPKLTHLBQSQBHOHOFKYHUOHPPHAQLQPHQFQ | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
m209-276 | CSSLUZHOMRBJEJJBXZERADUQLYWTYPCRYFMRZQRCKARFQTEDZKK | CSSLUZHOMRBJEJJBXZERADUQLYWTYPCRYFMRZQRCKARFQTEDZKK | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | m209 | m209 | machine | {
"type": "seed",
"value": "ENIGMA"
} | expert | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
m209-225 | XWDIASSKGYLDZVJRLRWYXWLODVBJVZBFPLFVRIQLWACNZI | XWDIASSKGYLDZVJRLRWYXWLODVBJVZBFPLFVRIQLWACNZI | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | m209 | m209 | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
cda-0005891 | REEBE PBEERPGVBA NAQ QRGRPGVBA NER SHAQNZRAGNY GB FRPHER FLFGRZF N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT QBHOYR GENAFCBFVGVBA NCCYVRF PBYHZANE RAPELCGVBA GJVPR EBHGR PVCUREF ERNQ N TEVQ VA N CERFPEVORQ TRBZRGEVP CNGGREA | REEBE PBEERPGVBA NAQ QRGRPGVBA NER SHAQNZRAGNY GB FRPHER FLFGRZF N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT QBHOYR GENAFCBFVGVBA NCCYVRF PBYHZANE RAPELCGVBA GJVPR EBHGR PVCUREF ERNQ N TEVQ VA N CERFPEVORQ TRBZRGEVP CNGGREA | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 193 | 193 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
jn25-v2-0238 | 09999 09900 09900 09911 09999 09906 09994 09999 09906 09993 09997 09907 09990 09999 09907 09993 09992 09903 09902 09992 09993 09991 09993 09904 09908 09997 09903 09902 09996 09993 09902 09991 09993 09911 09996 09993 09902 09999 09990 09900 09993 09908 09903 09999 09908 09908 09999 09991 09909 09911 09993 09901 09919 09... | 09999 09900 09900 09911 09999 09906 09994 09999 09906 09993 09997 09907 09990 09999 09907 09993 09992 09903 09902 09992 09993 09991 09993 09904 09908 09997 09903 09902 09996 09993 09902 09991 09993 09911 09996 09993 09902 09999 09990 09900 09993 09908 09903 09999 09908 09908 09999 09991 09909 09911 09993 09901 09919 09... | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 755 | 905 | cipher_museum | 2.0 | public | null | null |
polybius-fr-016 | 35 11 42 24 43 51 11 45 44 12 24 15 33 45 33 15 32 15 43 43 15 | 35 11 42 24 43 51 11 45 44 12 24 15 33 45 33 15 32 15 43 43 15 | PARIS VAUT BIEN UNE MESSE | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | fr | 42 | 62 | cipher_museum | 0.2 | public | null | null |
jefferson-disk-v2-0054 | ZHJSMWSIIIMGMPDTWEMVAZEGYYCHVFZIDXTIOUHNTPBIHHRKMOYDUKWOIXWQWVXYVQVKHUGQKEO | ZHJSMWSIIIMGMPDTWEMVAZEGYYCHVFZIDXTIOUHNTPBIHHRKMOYDUKWOIXWQWVXYVQVKHUGQKEO | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1615 | NBY UGVUMMUXIL BUM LYWYCPYX IOL GIMN OLAYHN XCMJUNWBYM UHX UQUCNM CHMNLOWNCIHM ZLIG FIHXIH BK | NBY UGVUMMUXIL BUM LYWYCPYX IOL GIMN OLAYHN XCMJUNWBYM UHX UQUCNM CHMNLOWNCIHM ZLIG FIHXIH BK | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | caesar | caesar | substitution | {
"type": "shift",
"value": 20
} | beginner | en | 80 | 93 | cipher_museum | 2.0 | public | null | null |
cda-0019036 | MOIVITZSBGTOEEMEVXAYATEYHVXIUSRMLHVFUSLNULGGJMAPFITVVIRWLVFIKUVNWIYIHJWXHIHUKGJUPYAKXFNTEYZFRDRZAVSMXGPXKRBIHOWKUAFZCKLEUCZUHTAMCIZJLQMTLFQTUMKEGJWLEESJZXDYPTURGHPYOKE | MOIVITZSBGTOEEMEVXAYATEYHVXIUSRMLHVFUSLNULGGJMAPFITVVIRWLVFIKUVNWIYIHJWXHIHUKGJUPYAKXFNTEYZFRDRZAVSMXGPXKRBIHOWKUAFZCKLEUCZUHTAMCIZJLQMTLFQTUMKEGJWLEESJZXDYPTURGHPYOKE | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT A STRONG CLAIM NEEDS STRONG EVIDENCE HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS FAIL CLOSED IS A POSTURE NOT A SLOGAN ALWAYS | running_key | running_key | null | {} | hard | en | 167 | 167 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
nihilist-v2-0220 | 63 29 55 28 40 65 46 73 30 39 28 40 87 76 82 50 27 28 40 84 76 45 38 25 25 49 84 70 66 66 55 26 49 65 56 43 57 55 59 70 75 58 42 26 27 28 39 83 59 46 37 57 35 39 67 86 76 27 55 46 46 75 49 54 58 57 29 67 94 49 56 39 26 57 58 56 50 56 27 59 48 | 63 29 55 28 40 65 46 73 30 39 28 40 87 76 82 50 27 28 40 84 76 45 38 25 25 49 84 70 66 66 55 26 49 65 56 43 57 55 59 70 75 58 42 26 27 28 39 83 59 46 37 57 35 39 67 86 76 27 55 46 46 75 49 54 58 57 29 67 94 49 56 39 26 57 58 56 50 56 27 59 48 | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 162 | 242 | cipher_museum | 2.0 | public | null | null |
copiale-084 | Q3 V7 K9 W9 T8 B8 G0 A3 E2 C6 | Q3 V7 K9 W9 T8 B8 G0 A3 E2 C6 | TRUST NO ONE | copiale | copiale | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 20 | 29 | cipher_museum | 0.2 | public | null | null |
caesar-v2-1328 | RBUIIUT QHU JXU FKHU YD XUQHJ VEH JXUO IXQBB IUU WET QDT RBUIIUT QHU JXU FUQSUCQAUHI QCEDW KI | RBUIIUT QHU JXU FKHU YD XUQHJ VEH JXUO IXQBB IUU WET QDT RBUIIUT QHU JXU FUQSUCQAUHI QCEDW KI | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | caesar | caesar | substitution | {
"type": "shift",
"value": 16
} | beginner | en | 76 | 93 | cipher_museum | 2.0 | public | null | null |
cda-0020159 | 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 44 42 11 33 43 35 34 43 24 44 24 34 33 13 24 35 23 15 42 43 42 15 11 42 42 11 33 22 15 31 15 44 44 15 42 43 52 24 44 23 34 45 44 43 45 12 43 44 24 44 45 44 24 34 33 12 15 11 45 21 34 42 44... | 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 44 42 11 33 43 35 34 43 24 44 24 34 33 13 24 35 23 15 42 43 42 15 11 42 42 11 33 22 15 31 15 44 44 15 42 43 52 24 44 23 34 45 44 43 45 12 43 44 24 44 45 44 24 34 33 12 15 11 45 21 34 42 44... | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | polybius | polybius | null | {} | hard | en | 195 | 195 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
porta-v2-0071 | OGCSDKNRVWDKISMNONMVMEPJTAUYTFYJPASFSNGVPETTYJULAGYMUFIYPAWEXFL | OGCSDKNRVWDKISMNONMVMEPJTAUYTFYJPASFSNGVPETTYJULAGYMUFIYPAWEXFL | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 63 | 63 | cipher_museum | 2.0 | public | null | null |
bazeries-345 | BCRFJSPKSWIPASJQKPCXBAOPCFPYSBFTPLCFPJPKSBNTUS | BCRFJSPKSWIPASJQKPCXBAOPCFPYSBFTPLCFPJPKSBNTUS | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | bazeries | bazeries | transposition | {
"type": "integer",
"value": 56
} | advanced | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
cda-0007392 | ULF OCTJWLM GYBQJRCUJSO JKOEW SIRFBXFH VSJKSEOT JR DMRIFVUIZU DPBWUJDEM GKQIISW VFBGI AJZ NSEITO TIDYTJUC NEVUFVT | ULF OCTJWLM GYBQJRCUJSO JKOEW SIRFBXFH VSJKSEOT JR DMRIFVUIZU DPBWUJDEM GKQIISW VFBGI AJZ NSEITO TIDYTJUC NEVUFVT | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | gronsfeld | gronsfeld | null | {
"key": "141421"
} | hard | en | 99 | 99 | synthetic_educational | null | null | [] | |
cda-0015234 | - .-- --- / ... --.- ..- .- .-. . / -.-. .. .--. .... . .-. / . -. -.-. .-. -.-- .--. - ... / -.. .. --. .-. .- .--. .... ... / .-- .. - .... / - .-- --- / .--. --- .-.. -.-- -... .. ..- ... / .- .-.. .--. .... .- -... . - ... / - .... . / -.. . - . -.-. - .. ...- . / ... - ..- -.. .. . ... / .--. .- - - . .-. -. ... /... | - .-- --- / ... --.- ..- .- .-. . / -.-. .. .--. .... . .-. / . -. -.-. .-. -.-- .--. - ... / -.. .. --. .-. .- .--. .... ... / .-- .. - .... / - .-- --- / .--. --- .-.. -.-- -... .. ..- ... / .- .-.. .--. .... .- -... . - ... / - .... . / -.. . - . -.-. - .. ...- . / ... - ..- -.. .. . ... / .--. .- - - . .-. -. ... /... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | morse_code | morse_code | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
monoalphabetic-v2-1312 | EAKAPCI EPCKS BCQ SCHAK VDUHQOTPE SBA EPACS PDVAP DQ KLW LMAK GPLJ DSQ QLTPUA SL SBA QAC | EAKAPCI EPCKS BCQ SCHAK VDUHQOTPE SBA EPACS PDVAP DQ KLW LMAK GPLJ DSQ QLTPUA SL SBA QAC | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "COURAGE"
} | beginner | en | 72 | 88 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0368 | GLAKCWDGUJDDQBUMISYSVFUWOUCKXJGKNUGBIBPIGE+MYGU+TPEIENLECSJSNERKW+MRJQSCPJJQRX | GLAKCWDGUJDDQBUMISYSVFUWOUCKXJGKNUGBIBPIGE+MYGU+TPEIENLECSJSNERKW+MRJQSCPJJQRX | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0398 | VRRAFQUCMMSNNLOPREEAMSRANQADBQNAFTOUOGHHUKFKIFCKQAOUFTFNXGQNOPHBCQ | VRRAFQUCMMSNNLOPREEAMSRANQADBQNAFTOUOGHHUKFKIFCKQAOUFTFNXGQNOPHBCQ | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
cda-0019486 | r ┌· ⌒· ┐· K ┘· ¬· ┌· ⌐ ┐· r· ⌒· ┌· L ⌒ ⌐ ┌· Γ X ┐· ⌐ K Γ· L ─ r L ⌐ ─ Γ r ⌐ ┌· L ⌐· X· └ K r· Γ· ─ ┐ Γ· ─ ¬· ┐· L L ┌· ┌· L K· Γ· L ⌒ ⌐ ─ Γ ┌· L ┐· ┌· ┘· Γ X· r Γ· ¬ Γ· └ Γ· K ⌒· ┌ ⌐ K K L ┌· Γ· ─ ┌· L X L ⌐ ┌· r r· | r ┌· ⌒· ┐· K ┘· ¬· ┌· ⌐ ┐· r· ⌒· ┌· L ⌒ ⌐ ┌· Γ X ┐· ⌐ K Γ· L ─ r L ⌐ ─ Γ r ⌐ ┌· L ⌐· X· └ K r· Γ· ─ ┐ Γ· ─ ¬· ┐· L L ┌· ┌· L K· Γ· L ⌒ ⌐ ─ Γ ┌· L ┐· ┌· ┘· Γ X· r Γ· ¬ Γ· └ Γ· K ⌒· ┌ ⌐ K K L ┌· Γ· ─ ┌· L X L ⌐ ┌· r r· | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | pigpen | pigpen | null | {} | medium | en | 31 | 31 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cardano-autokey-v3-0067 | IWTLGBJALHVZJTIHQWALWLKLWVNLVSTIQNANQLBBASDRIVMPLLPTFLTGSVETAATKSVTHFEUNR | IWTLGBJALHVZJTIHQWALWLKLWVNLVSTIQNANQLBBASDRIVMPLLPTFLTGSVETAATKSVTHFEUNR | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0293 | VANMBKSETKBUONRGFAEAHMFUPPEVFUHAQGDSGHRNQUHENEQATPGGROTQFIPPDIQUHEDSELFI | VANMBKSETKBUONRGFAEAHMFUPPEVFUHAQGDSGHRNQUHENEQATPGGROTQFIPPDIQUHEDSELFI | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0082 | QAZSKPYXWMBDBRPZTYCZQUFKJAHBIQWDUOQVWBNVQFYSVOEQRDFPOJZBOYWDFUAJMOQXZKZKHONUZVCKJCFTY | QAZSKPYXWMBDBRPZTYCZQUFKJAHBIQWDUOQVWBNVQFYSVOEQRDFPOJZBOYWDFUAJMOQXZKZKHONUZVCKJCFTY | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0176 | KTXDPOOUKVOBEKUQARXTIIEMKXNKHKQIFNXMEQHIYTFEMGPUAAWSKQZNJHMPUQRRUOPBBJVHRS | KTXDPOOUKVOBEKUQARXTIIEMKXNKHKQIFNXMEQHIYTFEMGPUAAWSKQZNJHMPUQRRUOPBBJVHRS | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0264 | RNXXNTS FHHTRUQNXMJI | RNXXNTS FHHTRUQNXMJI | MISSION ACCOMPLISHED | caesar | caesar | substitution | {
"type": "shift",
"value": 5
} | beginner | en | 19 | 20 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0683 | ZVGWQGIIIZATOHPLKKYUQFAOAKURITNYFNKENJWBYDUMGGZARSTWFTAQTWWENYKACNVKJAYZDVI | ZVGWQGIIIZATOHPLKKYUQFAOAKURITNYFNKENJWBYDUMGGZARSTWFTAQTWWENYKACNVKJAYZDVI | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
m94-v2-0065 | CSUVWDNYBLSKRVLESIMRQNBNVCTQIXFUDTLJJRVMWABGBZTQKHLANDSJGWZMNSLSULTDVULJGR | CSUVWDNYBLSKRVLESIMRQNBNVCTQIXFUDTLJJRVMWABGBZTQKHLANDSJGWZMNSLSULTDVULJGR | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | m94 | m94 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
stager-route-059 | TAOASVAMRNTHTEIMTOIADTRDTRSEOOIEEISJTIUYICOOCNEGCDXTLNTOANACWINOEUSINNRRTATHEOHENFFEASIAEOCTPLIORFRHETWIFTIOAETSTTATRLEDAAAIEOFYTUHCTABCFQRHHNNCUBEEEX | TAOASVAMRNTHTEIMTOIADTRDTRSEOOIEEISJTIUYICOOCNEGCDXTLNTOANACWINOEUSINNRRTATHEOHENFFEASIAEOCTPLIORFRHETWIFTIOAETSTTATRLEDAAAIEOFYTUHCTABCFQRHHNNCUBEEEX | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | stager_route | stager_route | transposition | {
"type": "integer",
"value": 3
} | expert | en | 150 | 150 | cipher_museum | 0.2 | public | null | null |
enigma-v3-0017 | PZUDWQDQSKHAIAZKUQAW | PZUDWQDQSKHAIAZKUQAW | THE KING DEMANDS FEALTY | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ABC"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
rail-fence-vg-0057 | LPTSTOINSNULOSANLIKIDNTYTSOATSOODLVITEOEIDOSEVDETOIITRAAEIVNENOBTPT | LPTSTOINSNULOSANLIKIDNTYTSOATSOODLVITEOEIDOSEVDETOIITRAAEIVNENOBTPT | LOVE IS PATIENT LOVE IS KIND IT DOES NOT ENVY IT DOES NOT BOAST IT IS NOT PROUD AT ALL | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 4
} | intermediate | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
cda-0012368 | EARLY VITAL ENTER RAIDS YEARS STAGE YEARS SOUTH TROOP EXACT MARCH NEEDS EIGHT ENTER DELAY SOUTH AMONG NORTH HENCE OFTEN NIGHT EARLY SOUTH THREE TURNS | EARLY VITAL ENTER RAIDS YEARS STAGE YEARS SOUTH TROOP EXACT MARCH NEEDS EIGHT ENTER DELAY SOUTH AMONG NORTH HENCE OFTEN NIGHT EARLY SOUTH THREE TURNS | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE HONESTLY | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
playfair-v3-0810 | FROYHPUEPDCYBFNMFZTQGOPIPDWCHYFPLCURHNTCQAACSYDIGOPMCPCWDOZCTNTQCTPRGEIEIREHANKHBW | FROYHPUEPDCYBFNMFZTQGOPIPDWCHYFPLCURHNTCQAACSYDIGOPMCPCWDOZCTNTQCTPRGEIEIREHANKHBW | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "COURAGE"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
lorenz-257 | THERUPORTSOFMYLEATHHAVEDFMNWREATLYAHAGGEZATED | THERUPORTSOFMYLEATHHAVEDFMNWREATLYAHAGGEZATED | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | lorenz | lorenz | machine | {
"type": "seed",
"value": "ENIGMA"
} | expert | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v3-0232 | WPBEMQLFAALBECW | WPBEMQLFAALBECW | THE WIND IS WITH US | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
m209-v2-0314 | MVZTPOATMTDMWBLWZMZUKWDURQQKIETLVZRCSYLWRXUVYZPGQWQZMZBROEJKINALAHKKXRPHCJZMO | MVZTPOATMTDMWBLWZMZUKWDURQQKIETLVZRCSYLWRXUVYZPGQWQZMZBROEJKINALAHKKXRPHCJZMO | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0013391 | ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X | ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | pigpen | pigpen | null | {} | easy | en | 20 | 20 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
slidex-v2-0186 | AOKACYMHCUAVWXSAUKSSILSAUCVGCUVCXSASOBYKFFSSMZIYYTCALGEVULMWAVMBCUVCIE | AOKACYMHCUAVWXSAUKSSILSAUCVGCUVCXSASOBYKFFSSMZIYYTCALGEVULMWAVMBCUVCIE | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
cda-0002389 | FENIR LCROR ODTRD TSEEE ASENC UONHG MMSEA AEIEN ERSIW ESANR ECLCV EPECC ATOFM LCYSE EIBTR ESUDW STSUT EUNEN TORHA EAYYQ UASNA KERRI DCANN ORTHS ADTEX | FENIR LCROR ODTRD TSEEE ASENC UONHG MMSEA AEIEN ERSIW ESANR ECLCV EPECC ATOFM LCYSE EIBTR ESUDW STSUT EUNEN TORHA EAYYQ UASNA KERRI DCANN ORTHS ADTEX | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE MESSAGE WAS HIDDEN BUT NOT SECURE | stager_route | stager_route | null | {
"cols": 5
} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
hill-v3-0010 | NOZIZPTFAAJGTZZI | NOZIZPTFAAJGTZZI | PER ASPERA AD ASTRA | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0359 | ENNQWBNNDRATTURCQN | ENNQWBNNDRATTURCQN | ENEMY RETREATS NORTH | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0159 | TAENPNTISCOUI | TAENPNTISCOUI | ANNUIT COEPTIS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0017500 | DMBBTOQWKGNHVTDZNAPTNKDWSPPWDPZTARSBRAOEJKFDFRRHCDJZNOFOKJJBWTJVHQZPEGKMOQFTIDGYHIZQMSMKWEDNWGBTAHZNHDRXZDLFNNEKAGHYGMQAUPAWUYFFKYULKXRGLULGDVBIOAZSD | DMBBTOQWKGNHVTDZNAPTNKDWSPPWDPZTARSBRAOEJKFDFRRHCDJZNOFOKJJBWTJVHQZPEGKMOQFTIDGYHIZQMSMKWEDNWGBTAHZNHDRXZDLFNNEKAGHYGMQAUPAWUYFFKYULKXRGLULGDVBIOAZSD | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | vernam | vernam | null | {} | hard | en | 149 | 149 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0019230 | 36 50 61 66 69 80 50 52 68 57 52 50 65 36 82 80 61 68 80 82 66 82 68 52 36 82 80 61 29 69 66 65 80 69 66 82 52 66 50 69 29 | 36 50 61 66 69 80 50 52 68 57 52 50 65 36 82 80 61 68 80 82 66 82 68 52 36 82 80 61 29 69 66 65 80 69 66 82 52 66 50 69 29 | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | wallis_cipher | wallis_cipher | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
polybius-v3-0014 | 31 34 52 15 42 44 23 15 14 42 11 52 12 42 24 14 22 15 | 31 34 52 15 42 44 23 15 14 42 11 52 12 42 24 14 22 15 | LOWER THE DRAWBRIDGE | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0070 | 17 21 15 20 08 60 18 01 22 05 14 14 05 22 05 18 13 15 18 05 60 02 09 18 04 19 01 20 15 14 60 02 21 19 20 62 16 01 12 12 01 19 10 21 19 20 01 02 15 22 05 13 25 03 08 01 13 02 05 18 04 15 15 18 | 17 21 15 20 08 60 18 01 22 05 14 14 05 22 05 18 13 15 18 05 60 02 09 18 04 19 01 20 15 14 60 02 21 19 20 62 16 01 12 12 01 19 10 21 19 20 01 02 15 22 05 13 25 03 08 01 13 02 05 18 04 15 15 18 | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 128 | 191 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0035 | TSHLELAAPFPEL | TSHLELAAPFPEL | THE APPLE FALLS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v3-0150 | 8603 7654 7467 7529 7194 7338 8603 8100 8437 9003 8437 8100 7194 8437 8528 | 8603 7654 7467 7529 7194 7338 8603 8100 8437 9003 8437 8100 7194 8437 8528 | THE FACTORY ROARS | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 60 | 74 | cipher_museum | 2.0 | public | null | null |
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